USS Becuna (SS/AGSS-319), an example of the standard fleet-type Balao class submarine of World War II, Becuna was commissioned in May, 1944 and conducted five wartime patrols with the U.S. Seventh Fleet. Becuna sank the 7500 ton freighter Nichiyoku Maru, two small coastal freighters, assisted USS Hawkbill with the sinking of the oiler Tokuwa Maru, and damaged another oiler. The submarine also s...